Add command stats to gitaly host detail dashboard
This patch adds some new panels to the gitaly host detail dashboard. We have new command stats metrics available with gitlab-org/gitaly!4464 (merged).
We add two different aggregations to the dashboard. Once by command (e.g. git upload-pack), and once by RPC (e.g. PostUploadPackWithSideChannel).
Background:
The goal is to close our observability gap when it comes to short-lived processes: gitlab-com/gl-infra/scalability#1655.
Demo:
Sample dashboard:
Edited by Igor